diff --git a/html/changelogs/AutoChangeLog-pr-13640.yml b/html/changelogs/AutoChangeLog-pr-13640.yml
new file mode 100644
index 00000000000..da9d6470b8d
--- /dev/null
+++ b/html/changelogs/AutoChangeLog-pr-13640.yml
@@ -0,0 +1,4 @@
+author: Kor
+delete-after: True
+changes:
+ - rscadd: "Nuke Op team leaders can now activate challenge mode if more than 50 players are online."